Application of confocal laser microscopy for identification of modern and fossil pollen grains, an example in palm Mauritiinae

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de Goiás (UFG)-
Autor(es): dc.contributorSmithsonian Tropical Research Institute-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de Mato Grosso-
Autor(es): dc.creatorCollevatti, Rosane G.-
Autor(es): dc.creatorCastañeda, Marcela-
Autor(es): dc.creatorSilva-Caminha, Silane A.F.-
Autor(es): dc.creatorJaramillo, Carlos-
Data de aceite: dc.date.accessioned2025-08-21T16:16:46Z-
Data de disponibilização: dc.date.available2025-08-21T16:16:46Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.revpalbo.2024.105140-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/308501-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/308501-
Descrição: dc.descriptionConfocal scanning laser microscopy (CSLM) is becoming a powerful tool for palynological studies. CSLM allows palynomorph image sectioning, internal and surface structures visualization, and 3D reconstruction at a higher resolution than standard light microscopy without extra processing. CSLM images are suitable for several image analysis techniques that could help improve the accuracy and reproducibility of taxa identification. Here, using the palm subtribe Mauritiinae (Arecaceae: Calamoideae: Lepidocaryeae) as a model group, we identify modern and fossil pollen grains using CSLM images coupled with ImageJ/Fiji 1.54f plugins and machine learning statistical analyses. Modern taxa pollen grains including Lepidocaryum tenue Mart., Mauritia flexuosa L.f., Mauritiella armata (Mart.) Burret and Mauritiella aculeata (Kunth) Burret were obtained from Smithsonian Tropical Research Institute (STRI) pollen collection or herbarium exsiccates. Fossil pollen of Grimsdalea magnaclavata Germeraad et al. 1968, and Mauritiidites franciscoi (van der Hammen) van der Hammen & Garcia de Mutis 1966, both from Miocene, and Mauritia pollen type from Holocene were obtained from STRI collection. We measured nine shape and exine quantitative parameters, and one qualitative parameter (pollen aperture). Pollen volume was the most important variable (28.270 mean decrease accuracy), followed by pollen aperture (15.003), Skewness (13.466), and spine density (10.246). The machine learning analysis, which included CART and Random Forests, correctly identified both fossil and extant grains. CSLM and the quantitative analysis of morphological traits are a new frontier in palynological studies.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionSmithsonian Tropical Research Institute-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionLaboratório de Genética & Biodiversidade Instituto de Ciências Biológicas Universidade Federal de Goiás, GO-
Descrição: dc.descriptionSmithsonian Tropical Research Institute, Balboa-
Descrição: dc.descriptionSpatial Ecology and Conservation Lab (LEEC) Department of Biodiversity São Paulo State University, Rio Claro-
Descrição: dc.descriptionFaculdade de Geociências Universidade Federal de Mato Grosso-
Descrição: dc.descriptionSpatial Ecology and Conservation Lab (LEEC) Department of Biodiversity São Paulo State University, Rio Claro-
Descrição: dc.descriptionFAPESP: 2022/10760-1-
Idioma: dc.languageen-
Relação: dc.relationReview of Palaeobotany and Palynology-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectArecaceae-
Palavras-chave: dc.subjectCART-
Palavras-chave: dc.subjectImageJ-
Palavras-chave: dc.subjectLepidocaryeae-
Palavras-chave: dc.subjectPaleontology-
Palavras-chave: dc.subjectPalynology-
Palavras-chave: dc.subjectRandom forests-
Palavras-chave: dc.subjectSpecies assignment-
Título: dc.titleApplication of confocal laser microscopy for identification of modern and fossil pollen grains, an example in palm Mauritiinae-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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